IFNAMES(1)                User Commands                IFNAMES(1)



NAME
       ifnames - Extract CPP conditionals from a set of files

SYNOPSIS
       ifnames [OPTION]... [FILE]...

DESCRIPTION
       Scan  all of the C source FILES (or the standard input, if
       none are given) and write to the standard output a  sorted
       list  of all the identifiers that appear in those files in
       `#if', `#elif', `#ifdef', or `#ifndef' directives.   Print
       each  identifier  on a line, followed by a space-separated
       list of the files in which that identifier occurs.

       -h, --help
              print this help, then exit

       -V, --version
              print version number, then exit

AUTHOR
       Written by David J. MacKenzie and Paul Eggert.

REPORTING BUGS
       Report bugs to .

COPYRIGHT
       Copyright (C) 2008 Free Software Foundation, Inc.  License
       GPLv2+:     GNU     GPL     version     2     or     later
       
       This is free software: you are free to change  and  redis-
       tribute it.  There is NO WARRANTY, to the extent permitted
       by law.

SEE ALSO
       autoconf(1),  automake(1),  autoreconf(1),  autoupdate(1),
       autoheader(1),    autoscan(1),    config.guess(1),    con-
       fig.sub(1), ifnames(1), libtool(1).

       The full documentation for ifnames is maintained as a Tex-
       info  manual.   If the info and ifnames programs are prop-
       erly installed at your site, the command

              info ifnames

       should give you access to the complete manual.



GNU Autoconf 2.63         September 2008               IFNAMES(1)